Adiabatic quantum-flux-parametron: A tutorial review

N Takeuchi, T Yamae, CL Ayala, H Suzuki… - IEICE Transactions …, 2022 - search.ieice.org
The adiabatic quantum-flux-parametron (AQFP) is an energy-efficient superconductor logic
element based on the quantum flux parametron. AQFP circuits can operate with energy …

ColdFlux superconducting EDA and TCAD tools project: Overview and progress

CJ Fourie, K Jackman, MM Botha… - IEEE Transactions …, 2019 - ieeexplore.ieee.org
The IARPA SuperTools program requires the development of superconducting electronic
design automation (S-EDA) and superconducting technology computer-aided design (S …

Mana: A monolithic adiabatic integration architecture microprocessor using 1.4-zj/op unshunted superconductor josephson junction devices

CL Ayala, T Tanaka, R Saito, M Nozoe… - IEEE Journal of Solid …, 2020 - ieeexplore.ieee.org
We conducted the first successful demonstration of an adiabatic microprocessor based on
unshunted Josephson junction (JJ) devices manufactured using a Nb/AlO x/Nb …

Results from the coldflux superconductor integrated circuit design tool project

CJ Fourie, K Jackman, J Delport… - IEEE Transactions …, 2023 - ieeexplore.ieee.org
In five and a half years, the ColdFlux project under the IARPA SuperTools program pushed
the boundaries of digital and analog superconductor electronic design automation (S-EDA) …

An adiabatic superconductor 8-bit adder with 24kBT energy dissipation per junction

N Takeuchi, T Yamae, CL Ayala, H Suzuki… - Applied physics …, 2019 - pubs.aip.org
Adiabatic quantum-flux-parametron (AQFP) logic is an energy-efficient superconductor logic
family. In this paper, we conducted the high-frequency operation and energy measurement …

Scalable flux controllers using adiabatic superconductor logic for quantum processors

N Takeuchi, T Yamae, W Luo, F Hirayama… - Physical Review …, 2023 - APS
Quantum processors have the potential to accelerate specific computing tasks but are
difficult to scale up due to engineering limitations, such as the number of available cables …

Superconducting neural networks with disordered Josephson junction array synaptic networks and leaky integrate-and-fire loop neurons

US Goteti, RC Dynes - Journal of Applied Physics, 2021 - pubs.aip.org
Fully coupled randomly disordered recurrent superconducting networks with additional open-
ended channels for inputs and outputs are considered the basis to introduce a new …

A stochastic-computing based deep learning framework using adiabatic quantum-flux-parametron superconducting technology

R Cai, A Ren, O Chen, N Liu, C Ding, X Qian… - Proceedings of the 46th …, 2019 - dl.acm.org
The Adiabatic Quantum-Flux-Parametron (AQFP) superconducting technology has been
recently developed, which achieves the highest energy efficiency among superconducting …

Beyond local optimality of buffer and splitter insertion for AQFP circuits

SY Lee, H Riener, G De Micheli - Proceedings of the 59th ACM/IEEE …, 2022 - dl.acm.org
Adiabatic quantum-flux parametron (AQFP) is an energy-efficient superconducting
technology. Buffer and splitter (B/S) cells must be inserted to an AQFP circuit to meet the …

A semi-custom design methodology and environment for implementing superconductor adiabatic quantum-flux-parametron microprocessors

CL Ayala, R Saito, T Tanaka, O Chen… - Superconductor …, 2020 - iopscience.iop.org
We present a comprehensive overview of a design methodology and environment that we
developed to enable the implementation of microprocessors and other complex logic circuits …